Force indicator for adjustable folding roller



J. J. BARTIZAL, JR 3,328,026

FORCE INDICATOR FOR ADJUSTABLE FOLDING ROLLER June 2 7, 1967 Filed March15, 1965 2 Sheets-Sheet 1 wem JEMJFQWZL'ZaZ, J]?

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FORCE INDICATOR FOR ADJUSTABLE FOLDING ROLLER 2 Sheets-Sheet 2 JamJTJSQm-ZQZJ? Filed March 15, 1965 United States Patent O 3,328,026 FORCEINDICATOR FOR ADJUSTABLE FOLDING ROLLER John J. Bartizal, Jr., 1015 W.61st St., Lisle, Ill. 60532 Filed Mar. 15, 1965, Ser. No. 439,735Claims. (Cl. 270-68) This invention relates to a folding machine andmore particularly to that type of folding machine which folds paper atone or more places and in which the paper is of one or more sheets orlayers.

In the printing industry, printed material is ordinarily printed in flatsheets, and then the sheets are folded and the sheets may be then cut orbound. There are machines provided for the folding of printed sheets. Itis evident that the folding machines must fol-d and form a crease in thepaper at a preselected position, and this position must be repeated witheach sheet. Although the need is greater in certain jobs than in others,it is evident that, for instance, should a piece of printing material beso arranged that a photograph extends from one page to the other; and inthe printing of the flat sheet, the photograph is not on abuttingpanels, 'but the final product has the photograph on adjacent pages, thephotograph must mate. It is not desirable to have printing from anotherpage extending into the middle of the photograph. Although the operationof folding machines is Well known in the art, that is, a sheet of paperpasses between a pair of rollers and is stopped to form a buckle at aprescribed location, and the buckled paper is rolled to form a crease inthe paper. A folding machine has its rollers adjusted for each job sothat the fold and the buckle occurs at a precise place, and the creaseis made in the exact location that is required rather than folding thepaper so that printing is missed or photographs do not meet. The settingup of the folding machines is an art rather than a precise mathematicalscience. The folding machines are adjusted with the pressures on thevarious rollers varied in order to get the correct folding. At thebeginning of each job which goes through a folding machine, the artisanwho adjusts the folding machine may take five hours to adjust a foldingmachine to its proper operation. Obviously, the folding machine is notoperating to fold paper in production during this time, and a certainamount of printed material is lost due to experimentation in setting upthe folding machines.

At the present time, there are two principal manufacturers of foldingmachines. Both of the manufacturers have machines which are built on thesame general principle and, that is, that springs constantly urgeadjacent rollers toward each other to apply the requisite pressurebetween the rollers to obtain an appropriate fold. With both of thesemachines, the artisan who sets up the machine spends a considerable timein setting up the machine. One of the aspects of a printing business isthat the repetition of a given job generally provides a source of higherprofits. Currently, there is one part of a repeat job which is not anymore profitable than a new job is, and that is in the folding of theprinted sheets. This is due to the fact that the folding machine must beadjusted for each job, and a job which is identical to a job which wentthrough a month before is not any easier to set up than one which hasnever been through before. It is a principal object of the presentinvention to provide an improvement in the construction of paper foldingmachines wherein it is possible to reduce the time required to set up afolding machine for a repeat job by providing an indicator at each endof each movable roller in the folding machine, so that each job theadjustment of the rollers may be noted and recorded thereby providing anartisan with a starting point for the adjustment of the movable rollersin the fold ing machine to reduce the setting up time at least fiftypercent.

It is another object of the herein disclosed invention to provide anindicator for use in a paper folding machine which indicator is capableof being attached to an existing paper folding machine.

It is a further object of the present invention to provide an improvedconstruction for a paper folding machine in which an indicator isconnected to each end of each of the movable rollers of the machine, andwhich indicator may be readily and conveniently observed to determinethe force applied between the adjacent rollers which have paper passingbetween them.

Other objects and uses of this invention will become readily apparent tothose skilled in the art upon a perusal of the following specificationin light of the accompanying drawings in which:

FIGURE 1 is an end view of a section of a paper folding machine in whichan indicator is shown connected to one end of each of the movablerollers of the sections thereby illustrating the instant invention;

FIGURE 2 is a cross sectional view taken on line 22 of FIGURE 1 withcertain parts broken away in order to show the construction of certainindicators;

FIGURE 3 is an enlarged end view of one of the indicators shown inFIGURES 1 and 2 in order to show better the construction of theindicator;

FIGURE 4 is a cross sectional view taken on line 4-4 of FIGURE 3;

FIGURE 5 is an end view of an indicator identical to that shown inFIGURE 3, but shown attached to a roller in which a spring rod isconnected directly to a pivot arm; and

FIGURE 6 is a perspective view of an indicator rod with four coloredsleeves fixed thereto mateably cooperating with an indicator plate.

Referring now to the drawing and especially to FIGURE 1, a section of afolding machine generally indicated by numeral 10 is shown therein. Thesection of the folding machine generally includes a pair of side panels12 and 14 which constitute a portion of a frame, a stationary roller 16rotatably mounted in the frame, three movable rollers 18, 20, and 22pivotally and rotatably mounted in the frame, a stop assembly 24 and asecond stop assembly 26 mounted on the frame adjacent to the rollers,and spring rod and indicator assemblies 28, 30, and 32 connected tomovable rollers 18, 20, and 22, respectively, and to the frame.

As is conventional in the construction of paper folding machines, aguide 34 is mounted between the side panels 12 and 14. A pair ofentrance rollers 36 and 38 drive the paper along the guide 34 toward theelongated rollers 16 and 18.

The roller 18 has a roller shaft 40 fixed thereto which roller shaft isconnected to a conventional drive which is not shown herein, but is wellknown in the art. The opposite ends of the roller shaft are rotatablymounted in pivot arms, one of which may be best seen in FIGURE 3. Oneend of the roller 18 is rotatably mounted in a pivot arm 42 and theother end of the roller is mounted in a similar arm. The pivot arm 42 ismounted pivotally on a bolt 44 which acts as a pivot pin for the pivotarm, and bolt 44 is fixed to the side panel 14 so that the pivot arm ispivotally connected to the frame as is evident in FIGURE 3. The roller18 has one end rotatably mounted in one end of the arm and at the otherend of the arm there is a spring receptacle portion 46 which includes aspring surface 48 with a boss 50 formed integral therewith. Acompression coil spring 52 is mounted on the spring receptacle portion46. It may be seen that one end of the spring en gages the springsurface 48 and the coils of the spring surround the boss 50, so that thespring is held onto the receptacle portion 46. A spring rod 54 isconnected to the other end of the spring 52. Spring rod 54 has a shank56 formed integral with one end. A spring retainer 58 which has areduced portion 60 is positioned within the spring 52, and a flange 62formed integral with the reduced portion is held in engagement with oneend of the spring. The spring retainer has a rod aperture 64 in itscentral portion which rotatably receives the shank 56. A rod ear 66 isfixed to the side panel 14 by a nut 68 and the spring rod 54 isthreadedly mounted in the ear 66. The spring rod has a knurled knob 70formed integral with its opposite end, and a lock nut 72 threadedlyengages the rod 54 between the knob 70 and the car 66. It may be seenthat by rotating the rod 54 in an appropriate direction, the compressionon spring 52 may be adjusted, and the lock nut 72 serves to hold the rodin a selected attitude.

The spring rod and indicator assembly 28 includes an indicator rod 74.The indicator rod 74, which is best seen in FIGURE 6, includes a loop 76formed integral therewith, which loop mates with the reduced portion 60of the spring retainer. The rod has four colored cylindrical sleeves 78,80, 82, and 84 adhesively secured to the rod adjacent to the endopposite the end having the loop. The sleeve 78 is black and has aplurality of lines 86 inscribed thereon to provide a marking indicia.The sleeve 80 is white and also has a plurality of lines 88 inscribedthereon. The sleeve 82 is red and has a plurality of lines 90 inscribedthereon, while sleeve 84 is brown and has a plurality of lines 92inscribed thereon. The sleeves provide an indicia for the indicator rodand are cooperative with an indicator plate 94. The indicator plate 94is substantially flat and has a stop 96 formed integral with one endthereof which stop is substantially perpendicular to the plate. Theindicator plate has a pair of apertures 98 and 100 formed therein. Theaperture 100 mateably receives the rod with its plurality of sleeves aswill be described hereinafter. The indicator plate is positioned on theear 66 with the stop 96 abutting the ear and the spring rod 54 passingthrough the aperture 98. The lock nut 72 performs a dual function ofholding the indicator plate in position and locking the threaded rod inits selecting position. It is evident that as the rod 54 is movedrelative to ear 66 to adjust the compression of spring 52, the amount ofadjustment or disposition of the spring relative to the frame isindicated by the cooperation of the plurality of sleeves on theindicator rod and the indicator plate.

The roller 18 is positioned adjacent to the stationary roller 16, andthe end of guide 34 extends to a position adjacent to the bite betweenthe rollers 16 and 18. On the other side of the rollers 16 and 18 thereis positioned the stop assembly 24. The construction of the stopassembly 24 is well known in the art and will not be described in detailherein other than to point out that the stop assembly '24 includes anadjustable stop 102 which engages paper which has passed through thebite between rollers 16 and 18.

The roller 20 is positionedadjacent to stationary roller 16. The roller20 is also driven by a conventional well known power source which is notdescribed in detail herein. The roller 20 has both ends rotatably andpivotally mounted on pivot arms, one of which is shown and is pivot arm104 which pivot arm is substantially identical in construction to pivotarm 42 which was described in detail above. The pivot arm 104 isconnected to a spring rod and indicator assembly 30 which issubstantially identical to the spring rod and indicator assembly 28which was described in detail above. The diiference between the twoassemblies is that the rods are longer in order to provide an addedconvenience for adjusting the compression on a spring 106 which isconnected to pivot arm 104.

Positioned adjacent to the roller 20 is the roller 22 so that there is abite between the rollers 20 and 22. The roller 20 is also pivotallyconnected to a pair of pivot arms one of which is pivot arm 108 whicharm is connected to a compression spring 110. The compression spring 110is connected to spring rod and indicator assembly 32 which is used todetermine the force applied between the bite of the movable rollers 20and 22.

The stop assembly 26 is positioned adjacent to the outlet of the bitebetween rollers 16 and 20 to receive paper which leaves those tworollers. The stop assembly includes a conventional stop 112 inasmuch asthe construction of stop assembly 26 is well known, no description ismade of the stop assembly herein.

In the operation of the section of the instant folding machine, themachine during its operation operates as a conventional folding machine,that is, a sheet of paper passes between rollers 36 and 38 to the bitebetween rollers 16 and 18. The rollers 16 and 18 drive paper into thestop assembly 24 until the paper engages stop 102. The paper thenbuckles to form a fold which told is then driven between rollers 16 and18 thereby creasing the paper, removing the paper from the stop assemblyand driving the folded sheet to the stop assembly 26 where the paperengages stop 112 at its creased portion. The paper buckles again and afold is formed and the folded portion passes between rollers 20 and 22to be creased and removed from the stop assembly. This particular aspectof the invention is old and well known.

In order to achieve proper buckling and creasing of the paper, thepressure between the rollers must be adjusted to a given amount whichamount is determined for each job by trial and error. There must be adesired pressure across the bite of the rollers. In the operation ofadjusting the pressure between the rollers, the lock nuts 72 areloosened and the knobs 70'are either raised or lowered to reduce orincrease the compression of the spring 52. The folding operation isobserved to determine whether there is proper folding occurring. Oncethe machine is adjusted to a proper setting whereby proper foldingoccurs, the machine may operate continually except for minor adjustmentswhich must be made to maintain the machine in adjustment. With themachine in proper adjustment for a given job, the artisan who adjuststhe machine may then observe the position of each of the springs on eachof the movable rollers. He then may note at which mark and for eachcolor the spring is adjusted in relation to the indicator plate. He thenmakes a notation for the setting of each end of each roller on a card.The card bearing the appropriate notations may then be filed. When thesame job comes through the plant again, the artisan who adjusts themachine then need only refer to said card to set the initial adjustmentfor the rollers. For instance, one end of the roller 18 may be adjustedto the first mark of the red and the other end may be adjusted to thetop mark of the white, the artisan thus has a means for starting hisadjustments thereby reducing the amount of time necessary for making theadjustment of the machine.

In looking now to FIGURE 5, it may be seen that the present inventionmay be utilized in a construction of a machine wherein a spring rod isconnected to the pivot arm. A pivot arm 200 is shown in FIGURE 5 mountedon a pivot pin 202. A roller 204 which is identical in construction tothe other movable rollers 18, 20, and 22 is rotatably mounted in pivotarm 200. The pivot arm 200 has a spring receptacle portion 206 whichincludes an aperture 208. A spring rod 210 extends through the aperture208 and has a head 212 to hold the rod in connection with the pivot arm.A compression coil spring 214 is positioned with one end in engagementwith the spring portion 206 and the rod 210 extends through the centerof the spring. The indicator rod 74 has its loop 76 in engagement withthe upper end of the coil spring. A spring plate 216 is positioned inengagement with the indicator rod and a spring lock nut 218 isthreadedly mounted on rod 210 and is in engagement with the plate 216.The rod 210 is threadedly mounted in ear 66 with the indicator plate 94in engagement with the ear. A rod lock nut 220 holds the plate inengagement with the ear as does lock nut 72 which was described above.The spring rod 210 has a knob 222 at its upper end for a convenientmeans for manipulating spring rod 210.

It may be appreciated in that the construction shown in FIGURE 5, thedevice operates somewhat differently in that the position of the springlock nut 218 along the spring rod determines the disposition of thespring 214 relative to the car 66. However, the indicator rod 74cooperates with the indicator plate 94 in the same manner as wasdiscussed above.

In view of the foregoing description, it is readily apparent that afolding machine may be adjusted for a particular job by an artisan andwhen the proper adjustment is attained, the attitude of the varioussprings at each end of each of the rollers is noted and recorded so thatwhen it is necessary to do the same job again, the machine may be placedin the same adjustment with a minimum of effort thereby reducing the setup time a substantial amount.

Although a specific embodiment of the herein disclosed invention hasbeen shown and described herein, it is readily apparent that thoseskilled in the art may make various modifications and changes withoutdeparting from the spirit and scope of the present invention. It shouldbe noted that four specific colors were shown as indicators,

.it is noted that different colors may be used without destop assemblymounted on said frame and positioned adjacent to a pair of said rollersto stop paper driven by said rollers to form a buckle in the paper, saidplurality of elongated rollers including a plurality of movable rollers,a pivot arm rotatably connected to each end of each of said movablerollers, each of said pivot arms being pivotally connected to the frame,a spring connected to each of said pivot arms urging the respective endof the movable roller toward an adjacent roller, an indicator connectedto each of the springs, and a fixed pointer cooperative with each of theindicators and being connected to the frame for indicating displacementof the spring relative to the frame.

2. In a paper folding machine, the combination, comprising, a pluralityof elongated rollers, each of said rollers having a driving surface forengaging paper to move the paper relative to the roller, each of saidrollers positioned adjacent to at least another roller to receive papertherebetween and to drive said paper, a frame, a stop assembly mountedon said frame and positioned adjacent to a pair of said r-ollers to stoppaper to form a buckle in the paper which buckled paper is drivenbetween a pair of the rollers to crease the paper, said plurality ofelongated rollers including a plurality of movable rollers, a pivot armrotatably connected to each end of each of said movable rollers, each ofsaid pivot arms being pivotally connected to the frame, a plurality ofrod ears fixed to the frame, a spring rod connected to each of said rodears, a spring connected to each of the pivot arms and to a respectivespring rod urging the respective end of the movable roller toward anadjacent roller, an indicator connected to each of the springs, and afixed pointer cooperative with each of the indicators and beingconnected to the frame for indicating displacement of the respectivespring relative to the frame.

3. In a paper folding machine, the combination, comprising, a frame, astationary roller rotatably mounted on the frame, a plurality ofelongated movable rollers rotatably connected to the frame, each of therollers positioned adjacent to at least another roller to receive papertherebetween and to drive said paper, a stop assembly mounted on saidframe and positioned adjacent to a pair of said rollers to stop paper toform a buckle in paper which buckled paper is driven between a pair ofrollers to crease the paper, a pivot arm rotatably connected to each endof each of said movable rollers, each of said pivot arms being pivotallyconnected to the frame, a plurality of rod ears equal in number to thenumber of ends of said movable rollers fixed to the frame, a spring rodfixed to each of the pivot arms and connected to a rod ear, a springconnected to each of the pivot arms and to a spring rod to urge therespective end of the respective movable roller toward an adjacentroller, an indicator connected to each of the springs, and a fixedpointer cooperative with each of the indicators and being connected tothe frame for indicating displacement of the spring relative to theframe.

4. In a paper folding machine, the combination, comprising, a pluralityof elongated rollers each of said rollers having a driving surface forengaging paper to drive said paper, each of said rollers positionedadjacent to at least another roller to receive paper therebetween and todrive said paper between the rollers, a frame, a stop assembly mountedon said frame and positioned adjacent to a pair of said rollers to stoppaper to form a buckle in the paper which buckled paper is drivenbetween a second pair of rollers to crease the paper, said plurality ofelongated rollers including a plurality of movable rollers, a pivot armrotatably connected to each end of each of said movable rollers, each ofsaid pivot arms being pivotally connected to the frame, a springconnected to each of the pivot arms urging the respective end of themovable roller toward an adjacent roller, an indicator rod connected toone end of each of the springs, indicia on each of the indicator rods,and a fixed pointer cooperative with the indicia of each of theindicator rods and being connected to the frame for indicating thedisplacement of the spring relative to the frame.

5. In a paper folding machine, the combination, comprising, a frame, aplurality of elongated rollers rotatably connected to the frame, each ofthe rollers having a drivmg surface for engaging paper to drive saidpaper relative to the rollers, each of said rollers positioned adjacentto at least another roller to receive paper therebetween, a stopassembly mounted on said frame and positioned adacent to a pair of saidrollers to stop paper to form a buckle in the paper which buckled paperis driven between a second pair of rollers to crease the paper, saidplurality of elongated rollers including a plurality of movable rollers,a pivot arm rotatably connected to each end of each of said movablerollers, each of said pivot arms being pivotally connected to the frame,a plurality of rod ears equal in number to the number of ends of saidmovable rollers fixed to the frame, a spring rod connected to each ofsaid rod ears, a spring connected to each of said pivot arms and to aspring rod urging the respective end of the movable roller toward anadjacent roller, an indicator rod connected to each of the springs, eachof said indicator rods having indicia thereon, and a fixed pointercooperative with each of the indicia and being connected to the framefor indicating displacement of spring relative to the frame and theforce between adjacent rollers is indicated by cooperation of the fixedpointer and indicia associated with the respective adjacent rollers.

6. In a paper folding machine, the combination, comprising, a frame, aplurality of elongated rollers rotatably connected to the frame, each ofsaid rollers positioned adjacent to at least another roller to receivepaper therebetween and to drive said paper, a stop assembly mounted onsaid frame and positioned adjacent to a pair of said rollers to stoppaper driven by said rollers to form a buckle in the paper which buckledpaper is driven by a second pair of rollers to crease paper, saidplurality of elongated rollers including a plurality of movable rollers,a pivot arm rotatably connected to each end of each of said movablerollers, each of said pivot arms being pivotally connected to the frame,a plurality of rod ears fixed to the frame, a spring rod connected toeach of the rod ears, a spring connected to each of the pivot arms andto a respective spring rod urging the respective end of the movablerollers toward an adjacent roller, an indicator rod connected to each ofthe springs, a plurality of sleeves fixed to each of the indicator rods,each of said sleeves being a different color than the adjacent sleeves,and a fixed pointer cooperative with each of the pluralities of sleevesand being connected to the frame for indicating the displacement of thespring relative to the frame.

7. In a paper folding machine, the combination, comprising, a frame, aplurality of elongated rollers rotatably connected to said frame, eachof said rollers positioned adjacent to at least another roller toreceive paper therebetween and to drive said paper, a stop assemblymounted on said frame and positioned adjacent to a pair of rollers tostop paper to form a buckle in said paper which buckled paper is drivenbetween a sec-nd pair of rollers to crease the paper, said plurality ofelongated rollers including a plurality of movable rollers, a pivot armrotatably connected to each end of each of said movable rollers, each ofsaid pivot arms being pivotally connected to the frame, a plurality ofrod ears fixed to the frame, a spring rod connected to each of said rodcars, a spring connected to each of the pivot arms and to a respectivespring rod urging the respective end of the movable roller toward anadjacent roller, an indicator rod connected to each of the springs, aplurality of sleeves fixed to each of the indicator rods, each of saidsleeves being a different color, each of said indicator rods mating withan aperture in a flat indicator plate, each of said flat indicatorplates fixed to an ear and cooperative with the sleeves of therespective indicator rod for indicating the-displacement of the springrelative to the frame, and the force applied between adjacent rollers isindicated by cooperation of the sleeves and plates associated with therespective adjacent rollers.

8. In a paper folding machine, the combination, comprising, a pluralityof elongated rollers, each of said rollers positioned adjacent to atleast another roller to receive paper therebetween and to drive saidpaper, a frame, a stop assembly mounted on said frame and positionedadjacent to a pair of said rollers to stop paper to form a buckle in thepaper which buckled paper is driven between a second set of rollers tocrease the paper, said plurality of elongated rollers including aplurality of movable rollers, a pivot arm rotatably connected to eachend of each of said movable rollers, each of said pivot arms pivotallymounted on the frame, a spring connected to each of the pivot armsurging the respective end of the movable roller toward the adjacentroller, an indicator rod connected to each of the springs, a pluralityof sleeves fixed to each of the indicator rods, each of said sleevesbeing a different col-or than the adjacent sleeves, and each indicatorrod movably mounted in a flat indicator plate having an aperture formovably receiving the plurality of sleeves to cooperate with saidsleeves, each of said fiat indicator plates fixed to the frame, wherebyeach plurality of sleeves cooperates with its respective indicator platefor indicating the displacement of the respective spring relative to theframe.

9. In a paper folding machine, the combination, comprising, a frame, aplurality of elongated rollers rotatably mounted on the frame, each ofsaid rollers positioned adjacent to at least another roller to receivepaper therebetween and to drive said paper, a stop assembly mounted onsaid frame and positioned adjacent to a pair of said rollers to stoppaper driven by said rollers to form a buckle in the paper, saidplurality of elongated rollers including a plurality of movable rollers,a pivot arm rotatably connected to each end of each of said movablerollers, each of said pivot arms being pivot-ally connected to theframe, resilient means connected to each of the pivot arms urging therespective end of the movable roller toward an adjacent roller, anindicator rod connected to one end of each of the resilient means, aplurality of sleeves fixed to each of the indicator rods, and a fixedpointer cooperative with each of the plurality of sleeves and beingconnected to the frame for indicating the attitude of the resilientmeans relative to the frame.

It). In a paper folding machine, the combination, comprising, a frame, astationary roller rotatably mounted on said frame, a plurality ofelongated movable rollers rotatably mounted on said frame, each of saidmovable rollers and the stationary roller positioned adjacent to atleast another roller to receive paper therebetween and to drive saidpaper, a stop assembly mounted on said frame and positioned adjacent toa pair of the rollers to stop the paper to form -a buckle in the paperwhich buckled paper is driven between a second pair of rollers to creasethe paper, a pivot arm rotatably connected to each end of each of saidmovable rollers, each of said pivot arms being pivotally connected tothe frame, a plurality of rod ears equal in number to the number of endsof said movable rollers fixed to the frame, a spring rod threadedlymounted in each of said rod cars, a lock nut threadedly mounted on eachof the spring rods for locking the spring rod relative to the rod ear, acompress-ion coil spring connected at one end to each of the pivot armsand at the other end to a respective spring rod for urging therespective end of the movable roller toward an adjacent roller, anindicator rod connected to the end of each of the springs and having oneend adjacent to its respective rod ear, a plurality of abuttingcylindrical sleeves fixed to each of the indicator rods, each of saidsleeves being a different color than the adjacent sleeves, indiciainscribed on each of the sleeves, a flat indicator plate held onto eachof the rod cars by the lock nut and having an aperture for matablyreceiving the sleeves of the respective indicator rod, whereby thedisposition of the compression spring relative to the frame is indicatedby the cooperation of the fiat indicator plate and the sleeves toindicate the force applied between adjacent rollers.

References Cited UNITED STATES PATENTS 735,357 8/1903 Hines 116114 X1,831,250 11/ 1931 Ibell 27068 2,699,331 1/ 1955 McGaruey et al 270 -683,266,175 8/1966 Palumbi 3519 FOREIGN PATENTS 627,029 9/ 1927 'France.692,865 11/ 19 30 France.

EUGENE R. CAPOZIO, Primary Examiner.

P. V. WILLIAMS, Assistant Examiner.

1. IN A PAPER FOLDING MACHINE, THE COMBINATION, COMPRISING, A PLURALITY OF ELONGATED ROLLERS, EACH OF SAID ROLLERS POSITIONED ADJACENT TO AT LEAST ANOTHER ROLLER TO RECEIVE STOP ASSEMBLY MOUNTED ON SAID PAPER, A FRAME, A STOP ASSEMBLY MOUNTED ON SAID FRAME AND POSITIONED ADJACENT TO A PAIR OF SAID ROLLERS TO STOP PAPER DRIVEN BY SAID ROLLERS TO FORM A BUCKLE IN THE PAPER, SAID PLURALITY OF ELONGATED ROLLERS INCLUDING A PLURALITY OF MOVABLE ROLLERS, A PIVOT ARM ROTTABLY CONNECTED TO EACH END OF EACH OF SAID MOVABLE ROLLERS, EACH OF SAID PIVOT ARMS BEING PIVOTALLY CONNECTED TO THE FRAME, A SPRING CONNECTED TO EACH OF SAID PIVOT ARMS URGING THE RESPECTIVE END OF THE MOVABLE ROLLER TOWARD AN ADJACENT ROLLER, AN INDICATOR CONNECTED TO EACH OF THE SPRINGS, AND A FIXED POINTER COOPERATIVE WITH EACH OF THE INDICATORS AND BEING CONNECTED TO THE FRAME FROM INDICATING DISPLACEMENT OF THE SPRING RELATIVE TO THE FRAME. 